The agreement, reached March 9, calls for PP&L to sell decreasing amounts of energy from 1995 to the end of the contract in 1999.

PP&L spokesman Paul Schock said the agreement stemmed from an August ruling by the Pennsylvania Public Utility Commission which barred PP&L from including the surplus generating capacity in its rate base.

"Since it was out of the rate base and we were not getting a rate of return from the customers, we just decided to sell (the surplus energy) to someone else," Schock said.

PP&L has about 1 million customers in central and eastern Pennsylvania.